An international study found cool people are extroverted, open, hedonistic, adventurous, autonomous and powerful. At best, I have three of these traits. Could I change that?

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ho would you say is effortlessly, undeniably cool? Charli xcx, certainly. David Bowie, of course. Yoko Ono and Fran Lebowitz – or do they just wear a lot of black? I’m not cool and never have been. As a teenager, I was a swot at a school that prized sports. As an adult, I’m always wearing a backpack. I’m garrulous, risk-averse, lazy with my personal presentation and not convinced that any drug beats eight hours’ sleep. “Cool” feels to me like the stock market or Michelin restaurants: none of my business.

I’m not alone. In a recent YouGov survey, a third of respondents said they weren’t cool at school, with only 10% reporting that, yep, they actually were. Half claimed they were “somewhere in between”.

But I know I’m missing out. Cool people are desirable and in demand; others want to be them or be with them. That social clout readily converts into capital as people buy what you’re selling, hoping it will rub off on them.